Safety gas-burner.



Patented May 23, Y1911.

4.. ma F INVENTOR C. SCHNEIDER.

SAFETY GAS BURNER.

APPLICATION FILED JUNI: 15, 1909.

WITNESSES CARL SCHNEIDER, OF JERSEY CITY HEIGHTS, NEW'JERSEY.

SAFETY GAS-BURNER.

Specification of Letters Patent.

Application led .T une 15, 1909.

Patented May 23, 1911. Serial No. 502,280.

To all whom 'it may concern:

Be it known that I, CARL SCHNEIDER, a citizen of the United States,residing in Jersey City Heights, county of Hudson, and State of NewJersey, have invented certain new and useful Improvements in SafetyGas-Burners, of which the following is a specification.

cheap, and operates promptly so as to save the loss of even a smallquantity of as.

The' accompanyin drawings il ustrate embodiments of the invention.

Figures 1 and 2 are vertical side and front elevations of the burner.Figs. 3 and 4 are vertical sections of the same burner in the -closedand open positions of the valve reas shown or with the valve seat andother passages 9formed in a separate piece for convenlence.

The valve seat C is in a substantially vertical plane. The gas assesfrom the base vof the tube through e passage D to the valve chamber Eand thence out by Way of the passage F. The valve G also -stands in anapproximately verticalposition. It is a free or floating valve with itslower ed e resting upon the bottom of the chamber the chamber and valvebeing preferably cilC cular, and the chamber being closed by a removableplug H also circular as indicated 'l :Nin Fig. 1, and which ispreferably held in place by friction although ity may be fas- ;tened inany suitable way.

' The valve opens with the pressure of the fugas and is given anadditional o ening orce by formin it -with a weight on its outer face,and y making its edge beveled so that it rests upon a thm smooth line inthe rear of its inner face, and thus tends always to fall outward,'andcloses perfectly.

The valve is normally prevented from moving in the opening direction bymeans Vof a pin K passing through the plug H and held against accidentalloss by a small head on its inner end. In its outer position the pin Kpermits the valve to move unobstructedly. The pin is normally held in,however, so that its end presses the valve toward its seat, the pinengaging the outer face of the valve as shown in Fig. 3. The

in is under control of a thermostat such or example, as the bi-metallicbow L fixed at one end to the side ofl the burner, by means of a screw Mwhich fastens the end of the thermostat in a suitably shaped recess orsocket in the burner tube, so that the thermostat is held rigidly atthis end. The thermostat passes up and over t-he tip of the burner,being slotted at the top to avoid interference with the flame, and itsfree end passes down upon the opposite side of the burner toward the pinK. It is this free end of the thermostat which moves the pin K inlandout and so operates or releases the va ve.

The connecting device between the thermostat L and the pin K is africtional device Which causes`the very first contracting or expandingmovement to be transmitte to the valve. After the first movement of thethermostat sufficiently to move the pin K its full distance there isalways a considerable continued movement of the thermostat, and thefrictional connection ermits this continued movement of the t ermostat'without necessitating a continued Y movement of the pin. On the returnmovement of the thermostat, it first moves the pin to its oppositetinues to the llmit o movement of the thermostat. Thus a very smallmovement of the in is. all that is necessary, and the lengtlh of timeduring which the thermostat must continue to expand or contract inorderto shift the pin from one position to another, can be madeaccordingly small. At the same time ample room for the flow of as isprovided by the use of a float valve witi a large orifice. Thefrictional connection shown comprises a sprin lN fastened upon a stud Oon the free eng of the thermostat, and having a pair of arms whichembrace the pin K frictionally.

osition and then con- With this construction it is not necessary to holdthe valve open in order to light ,the gas. A match held at thetip willheat the thermostat in about the length of timefreuired to light acandle, sufficiently to withraw the pin K and permit the gas to How andto light. The heat of the gas expands the thermostat further, but itcontinues to grip the pin K through the frictional device N, and within'a f ew seconds of the disappearance of the iiame the thermostat willhave contracted suiiiciently to cui` off the gas.

Various modifications may be made in detail and in the arrangement ofthe parts, without departing from the invention.

1. A safety gas burner having a valve, a member controlling saide valveand a thermostat frictionally connected to said member soas to actuatetheA same and to move relatively thereto when expanded or contractedbeyond the distance corresponding to the limit of movement of saidmember', said valve being adapted to be opened automatically by thepressure of the gas upon the l'heatin of the thermostat. 5

2. A sa ety Agasfburner having a valve seat and a valve G standing in anapproximately vertical plane and weighted assist its 4opening movement,a substantially horizontal pin K extending outside of the burner andhaving its inner end Jin line with said valve, and thermostatic meansfor moving said 'pin inward toA close the valve when the light is out.

3. A safety gas burner having ra valve seat andv a valve G standing inan approximately vertical plane and weighted to assist its openingmovement, a substantially horizontal pin K extending outsidel of theburner and having its inner end in line with 'said valve, a thermostat,and a rictional connecting device N below said thermostat and engagingsaid pin for moving said pm inward to close the valve or outward to openit, and permitting an excess movement of the thermostat beyond that ofthe pin. l

In witness whereof, I have hereunto signed my name in the presence oftwosub-

